Feeler: CP Pistons, Medium Comp, 10:1

phunk · 11-14-2013, 01:48 PM

More expensive? Thats the wrong way to look at it... if it saves you from broken oil pumps, it will save you money in the long run!

You cant afford to not buy it!!! lol

Chuck33079 · 11-14-2013, 01:49 PM

Quote:

Originally Posted by phunk

More expensive? Thats the wrong way to look at it... if it saves you from broken oil pumps, it will save you money in the long run!

You cant afford to not buy it!!! lol

Yep. That's how I keep justifying spending money on this car.

COSMO · 11-26-2013, 06:47 PM

1. phunk
2. Chuck33079
3. GaleForce
4. cosmogirl

Quote:

Originally Posted by phunk

1. phunk
2. Chuck33079
3. GaleForce

4 more to go and we have pistons being made! When I posted this thread, I had also just ordered a set of custom pistons for a buddies car. His pistons came in last week!

OldBoy · 11-26-2013, 06:53 PM

Count me in!!

djtodd · 11-26-2013, 07:12 PM

count me in as well

phunk · 11-26-2013, 07:43 PM

1. phunk
2. Chuck33079
3. GaleForce
4. cosmogirl
5. OldBoy
6. djtodd

OK looks like enough to me. Tomorrow I will contact CP and get the ball rolling and I will post back what we are looking at for ETA. If we are only short 1 or 2 people, I dont mind placing the order because I am sure they will sell before they are done making them.

OMGWTFBBQ · 11-26-2013, 07:46 PM

1. phunk
2. Chuck33079
3. GaleForce
4. cosmogirl
5. OldBoy
6. djtodd
7. OMGWTFBBQ

Count me in (if it's not too late)!!!

phunk · 11-26-2013, 07:51 PM

Quote:

Originally Posted by OMGWTFBBQ

1. phunk
2. Chuck33079
3. GaleForce
4. cosmogirl
5. OldBoy
6. djtodd
7. OMGWTFBBQ

Count me in (if it's not too late)!!!

not too late for this one!!!!!

phunk · 11-26-2013, 08:10 PM

BTW I am curious if you guys are interested in this.

I have thought about constructing pistons that would be compatible with both VHR and HR cylinder heads. This means anyone who wants to make the change immediately or down the road is clear to go and will not have to do the bottom end again.

I already discussed this with CP and the conclusions we came to was that this was most likely very possible. We have to compare the valve angles between the HR and VHR cylinder heads and do a little math... but by adding some well planned exhaust valve reliefs to the pistons we could probably have a piston for the VHR bottom end with HR or VHR heads. Some research also has to be done to determine if this will or will not change the CR between one head and the other.

I was concerned about if you guys would care for this or not. I wasnt sure if people would feel there is a compromise in the pistons design to accommodate cylinder heads that they are not running. But this would sure be a lot easier on me for stocking in the future. On top of that, I am currently leaning more towards HR heads for my build, but I am not ready to commit to them yet... but I want to start my bottom end build!

BGTV8 · 11-26-2013, 09:14 PM

Quote:

Originally Posted by phunk

BTW I am curious if you guys are interested in this.

I have thought about constructing pistons that would be compatible with both VHR and HR cylinder heads. This means anyone who wants to make the change immediately or down the road is clear to go and will not have to do the bottom end again.

I already discussed this with CP and the conclusions we came to was that this was most likely very possible. We have to compare the valve angles between the HR and VHR cylinder heads and do a little math... but by adding some well planned exhaust valve reliefs to the pistons we could probably have a piston for the VHR bottom end with HR or VHR heads. Some research also has to be done to determine if this will or will not change the CR between one head and the other.

I was concerned about if you guys would care for this or not. I wasnt sure if people would feel there is a compromise in the pistons design to accommodate cylinder heads that they are not running. But this would sure be a lot easier on me for stocking in the future. On top of that, I am currently leaning more towards HR heads for my build, but I am not ready to commit to them yet... but I want to start my bottom end build!

So, if you can look at 13.0:1 in VQ37 bottom end with HR heads and 14mm peak lift I am interested (planning E85 NA engine for VQ engined sports car here in Oz). Std VQ37 stroke and rod-length. Key issue is sufficient meat on the crown to allow for valve relief .... bit off topic for this thread, BUT signalling my interest.

faceglide · 11-27-2013, 01:30 AM

PM me details please, very likely interested. Never too early to get that built block rolling.

tibal · 11-27-2013, 08:31 AM

You forgot me! In from day one!!

Quote:

Originally Posted by phunk

1. phunk
2. Chuck33079
3. GaleForce
4. tibal

3 more sets would lock in the deep pricing! But I can see what I can do if we dont get that far. I am sure I can still get us a decent break... but to hit those 7 sets would be amazing... that would be shelf piston pricing for custom CPs!

phunk · 11-27-2013, 01:48 PM

1. phunk
2. Chuck33079
3. GaleForce
4. tibal
5. cosmogirl (maybe)
6. OldBoy
7. djtodd
8. OMGWTFBBQ

I will have timeline details sorted out today!

phunk · 11-27-2013, 03:13 PM

OK I just got off the phone with CP.

So there is good news and bad news. The bad news first... my original quote no longer applies, prices have gone up. Enough that it might effect peoples decision to be in on this or not. I am not really sure why this is, I am thinking there was some sort of communication error.

This is my quoted cost, no markup (which says how much pricing has changed because in my original pricing I was making a few bucks on it):

10:1, .020 over, HD Pistons (designed for 700+ crank), $804
Heavy Duty Wrist Pin Upgrade, $54 (you want this)
Coatings: $20 per piston for dome, $20 per piston for skirt
Plus shipping and CC fees.

If you guys still want in, I will do it at a wash and show the invoice.

Quoted timeframe if we order by early next week, 4-5 weeks.

I am still in. Anyone else?

Chuck33079 · 11-27-2013, 03:31 PM

I guess I'm out if you're doing this now. Am I correct in assuming I can still get a single set of these at any time, albeit at higher cost?

11-14-2013, 01:48 PM	#46 (permalink)
phunk A True Z Fanatic Join Date: Mar 2009 Location: Chicago Posts: 3,654 Drives: 370 Rep Power: 944523	More expensive? Thats the wrong way to look at it... if it saves you from broken oil pumps, it will save you money in the long run! You cant afford to not buy it!!! lol __________________ Charles @ CJ Motorsports : Website \| Facebook \| Instagram \| YouTube Home of the 9 second, stock longblock, stock drivetrain 6MT 370z. 9.91 @ 142mph

11-26-2013, 07:12 PM	#50 (permalink)
djtodd Track Member Join Date: Jun 2012 Location: Lexington, SC Posts: 932 Drives: 2012 Nismo TT Rep Power: 3397	count me in as well __________________ DJTodd's Build Thread Fast Intentions • Volk • Stoptech • Carbotech • SPL • Southbend • OS Giken • RJM • Sparco • RobiSpec • AIM • Driver Mod

11-26-2013, 07:43 PM	#51 (permalink)
phunk A True Z Fanatic Join Date: Mar 2009 Location: Chicago Posts: 3,654 Drives: 370 Rep Power: 944523	1. phunk 2. Chuck33079 3. GaleForce 4. cosmogirl 5. OldBoy 6. djtodd OK looks like enough to me. Tomorrow I will contact CP and get the ball rolling and I will post back what we are looking at for ETA. If we are only short 1 or 2 people, I dont mind placing the order because I am sure they will sell before they are done making them. __________________ Charles @ CJ Motorsports : Website \| Facebook \| Instagram \| YouTube Home of the 9 second, stock longblock, stock drivetrain 6MT 370z. 9.91 @ 142mph

11-26-2013, 08:10 PM	#54 (permalink)
phunk A True Z Fanatic Join Date: Mar 2009 Location: Chicago Posts: 3,654 Drives: 370 Rep Power: 944523	BTW I am curious if you guys are interested in this. I have thought about constructing pistons that would be compatible with both VHR and HR cylinder heads. This means anyone who wants to make the change immediately or down the road is clear to go and will not have to do the bottom end again. I already discussed this with CP and the conclusions we came to was that this was most likely very possible. We have to compare the valve angles between the HR and VHR cylinder heads and do a little math... but by adding some well planned exhaust valve reliefs to the pistons we could probably have a piston for the VHR bottom end with HR or VHR heads. Some research also has to be done to determine if this will or will not change the CR between one head and the other. I was concerned about if you guys would care for this or not. I wasnt sure if people would feel there is a compromise in the pistons design to accommodate cylinder heads that they are not running. But this would sure be a lot easier on me for stocking in the future. On top of that, I am currently leaning more towards HR heads for my build, but I am not ready to commit to them yet... but I want to start my bottom end build! __________________ Charles @ CJ Motorsports : Website \| Facebook \| Instagram \| YouTube Home of the 9 second, stock longblock, stock drivetrain 6MT 370z. 9.91 @ 142mph

11-27-2013, 01:48 PM	#58 (permalink)
phunk A True Z Fanatic Join Date: Mar 2009 Location: Chicago Posts: 3,654 Drives: 370 Rep Power: 944523	1. phunk 2. Chuck33079 3. GaleForce 4. tibal 5. cosmogirl (maybe) 6. OldBoy 7. djtodd 8. OMGWTFBBQ I will have timeline details sorted out today! tibal likes this. __________________ Charles @ CJ Motorsports : Website \| Facebook \| Instagram \| YouTube Home of the 9 second, stock longblock, stock drivetrain 6MT 370z. 9.91 @ 142mph

11-26-2013, 06:53 PM	#49 (permalink)
OldBoy Base Member Join Date: Feb 2012 Location: Ontario Posts: 61 Drives: '10 Nissan 370Z M6 Rep Power: 13	Count me in!!

11-26-2013, 07:46 PM	#52 (permalink)
OMGWTFBBQ A True Z Fanatic Join Date: Jan 2009 Location: the OC Posts: 1,886 Drives: 08 SGM IS350 Rep Power: 4549	1. phunk 2. Chuck33079 3. GaleForce 4. cosmogirl 5. OldBoy 6. djtodd 7. OMGWTFBBQ Count me in (if it's not too late)!!!

11-27-2013, 01:30 AM	#56 (permalink)
faceglide Track Member Join Date: Sep 2012 Location: san jose Posts: 550 Drives: '12 370Z FI TT BkChr Rep Power: 37	PM me details please, very likely interested. Never too early to get that built block rolling.

11-27-2013, 03:13 PM	#59 (permalink)
phunk A True Z Fanatic Join Date: Mar 2009 Location: Chicago Posts: 3,654 Drives: 370 Rep Power: 944523	OK I just got off the phone with CP. So there is good news and bad news. The bad news first... my original quote no longer applies, prices have gone up. Enough that it might effect peoples decision to be in on this or not. I am not really sure why this is, I am thinking there was some sort of communication error. This is my quoted cost, no markup (which says how much pricing has changed because in my original pricing I was making a few bucks on it): 10:1, .020 over, HD Pistons (designed for 700+ crank), $804 Heavy Duty Wrist Pin Upgrade, $54 (you want this) Coatings: $20 per piston for dome, $20 per piston for skirt Plus shipping and CC fees. If you guys still want in, I will do it at a wash and show the invoice. Quoted timeframe if we order by early next week, 4-5 weeks. I am still in. Anyone else? __________________ Charles @ CJ Motorsports : Website \| Facebook \| Instagram \| YouTube Home of the 9 second, stock longblock, stock drivetrain 6MT 370z. 9.91 @ 142mph

11-27-2013, 03:31 PM	#60 (permalink)
Chuck33079 A True Z Fanatic Join Date: Nov 2011 Location: Houston Posts: 12,265 Drives: 2011 370ztt Rep Power: 29538	I guess I'm out if you're doing this now. Am I correct in assuming I can still get a single set of these at any time, albeit at higher cost? __________________ 2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent

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